SK4 Tool Steel

 

SK4 steel is a type of high carbon tool steel with the following specifications:

Standards: The main standards for SK4 steel are the Japanese standard JIS G4401 and the Chinese standard GB/T1298.

 

Chemical Composition: The chemical composition of SK4 steel includes carbon (C) ranging from 0.95-1.04 percent , silicon (Si) less than 0.35 percent , manganese (Mn) ranging from 0.40-1.00 percent , and the content of phosphorus (P) and sulfur (S) not exceeding 0.030 percent .

 

Properties: The tensile strength of SK4 steel ranges from 540-730 MPa, and the yield strength is 240 MPa. The fracture elongation is 20 percent .

 

Uses: SK4 steel is primarily used for manufacturing cold stamping dies, cutting tools, milling cutters, bearings, and other components that require high hardness and wear resistance.

 

Condition: SK4 steel is usually supplied in an annealed state, which has relatively low hardness and good machinability.

 

Advantages: SK4 steel has good hardenability, allowing it to achieve high hardness and excellent cutting performance. It also has good wear resistance and adjustability.

 

Disadvantages: SK4 steel has relatively poor toughness, making it prone to fractures and deformation. Suitable processing conditions should be employed while using SK4 steel.

 

Common Forms: Common forms of SK4 steel include round bars, flat bars, and sheets.

 

Comparison of National Standards: Compared to carbon tool steel grades in other countries, the chemical composition and properties of SK4 steel are slightly different. In China, a similar grade is T11 steel, following GB/T1298 standard.

 

In summary, SK4 steel is a type of high carbon tool steel mainly used to manufacture cold stamping dies, cutting tools, milling cutters, and bearings. Understanding its standards, chemical composition, properties, uses, conditions, advantages, disadvantages, and common forms will help in selecting and applying this steel material.

 

 

	38Cr2,1.7003,46Cr2,1.7006,34Cr4,1.7033,34CrS4 ,1.7037 ,37Cr4 ,1.7034 ,37CrS4 ,1.7038 ,41Cr4 1.7035 ,41CrS4 ,1.7039,25CrMo4 ,1.7218,25CrMoS4,1.7213,34CrMo4,1.722,34CrMoS4 ,1.7226,42CrMo4 ,1.7225,42CrMoS4,1.7227,50CrMo4,1.7228,34CrNiMo6,1.6582,30CrNiMo8,1.658, 35NiCr6,1.5815,36NiCrMo3,1.6773,39NiCrMo3,1.651,30NiCrMo16-6,1.6747,51CrV4,1.8159,20MnB5 ,1.553,30MnB5,1.5531,38MnB5,1.5532,27MnCrB5-2,1.7182,33MnCrB5-2,33MnCrB5-2,1.7185,39MnCrB5-2,1.7189 , SCM440,SCr440,42C r M o ,35C r M o ,20C r N i M o ,SNCM220,SCM435,SCM430,8620,SNCM220,SCM415,8650,5150,4150,SCR415,SCR240, SCR430,SCR435,40 Cr,45 Cr, 40C r N i M o,30C r M n S i A,35C r M n S i A,27S i M n, etc
	7-15 days or according to the order quantity or negotiation

 

 

• We independently research and develop on the basis of introducing and digesting foreign advanced technology, constantly innovate and forge ahead, and strive to create a domestic first-class SK4 Steel brand.
• Our company introduces advanced production technology and control technology, and through unremitting efforts, provides advanced SK4 Steel for major manufacturers, which has been highly praised and recognized by customers. Advanced automated production technology reduces production operating costs, improves product yield, and provides the possibility for product standardization for our customers.
• Our production line of the SK4 Steel adopts advanced new technology, with the characteristics of high output, low energy consumption, high degree of automation and high labor productivity.

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